HP 285 Maintenance and Service Guide - Page 82

Device Options, Device Manager

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Sound does not come out of the speaker or headphones. Cause Solution Headphones or devices connected to the line-out connector mute Turn on and use headphones or external speakers, if connected, the internal speaker. or disconnect headphones or external speakers. Computer is in Sleep state. Press the power button to resume from Sleep state. CAUTION: When attempting to resume from Sleep state, do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data. Internal speaker is disabled in Computer Setup. Enable the internal speaker in Computer Setup. Select Advanced > Device Options > Internal Speaker. The application is set to use a different audio device than speakers. Some graphics cards support audio over the DisplayPort connection (if applicable), so multiple audio devices may be listed in Device Manager. Make sure the correct device is being used. To access Device Manager in Windows 7, click Start, select Control Panel, and then select Device Manager. To access Device Manager in Windows 10, type device manager in the taskbar search box, and then select Device Manager from the list of applications. Some applications can select which audio output device is used. Make sure the application has selected the correct audio device. The operating system controls may be set to use a different audio Set the operating system to use the correct audio device. device as the default output device than what is expected. Sound from headphones is not clear or muffled. Cause Solution Headphones are plugged into the rear audio output connector. The rear audio output connector is for powered audio devices and is not designed for headphone use. Plug the headphones into the headphone connector on the front of the computer. Computer appears to be locked up while recording audio. Cause The hard disk may be full. Solution Before recording, make sure there is enough free space on the hard disk. You can also try recording the audio file in a compressed format. Line-in jack is not functioning properly. Cause Jack has been reconfigured in the audio driver or application software. Solution In the audio driver or application software, reconfigure the jack or set the jack to its default value. 74 Chapter 6 Troubleshooting without diagnostics

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Sound does not come out of the speaker or headphones.
Cause
Solution
Headphones or devices connected to the line-out connector mute
the internal speaker.
Turn on and use headphones or external speakers, if connected,
or disconnect headphones or external speakers.
Computer is in Sleep state.
Press the power button to resume from Sleep state.
CAUTION:
When attempting to resume from Sleep state, do not
hold down the power button for more than four seconds.
Otherwise, the computer will shut down and you will lose any
unsaved data.
Internal speaker is disabled in Computer Setup.
Enable the internal speaker in Computer Setup. Select
Advanced
>
Device Options
>
Internal Speaker
.
The application is set to use a
different
audio device than
speakers.
Some graphics cards support audio over the DisplayPort
connection (if applicable), so multiple audio devices may be listed
in Device Manager. Make sure the correct device is being used.
To access Device Manager in Windows 7, click
Start
, select
Control
Panel
, and then select
Device Manager
.
To access Device Manager in Windows 10, type
device
manager
in the taskbar search box, and then select
Device
Manager
from the list of applications.
Some applications can select which audio output device is used.
Make sure the application has selected the correct audio device.
The operating system controls may be set to use a
different
audio
device as the default output device than what is expected.
Set the operating system to use the correct audio device.
Sound from headphones is not clear or
muffled.
Cause
Solution
Headphones are plugged into the rear audio output connector.
The rear audio output connector is for powered audio devices and
is not designed for headphone use.
Plug the headphones into the headphone connector on the front
of the computer.
Computer appears to be locked up while recording audio.
Cause
Solution
The hard disk may be full.
Before recording, make sure there is enough free space on the
hard disk. You can also try recording the audio
file
in a
compressed format.
Line-in jack is not functioning properly.
Cause
Solution
Jack has been
reconfigured
in the audio driver or application
software.
In the audio driver or application software,
reconfigure
the jack or
set the jack to its default value.
74
Chapter 6
Troubleshooting without diagnostics